Buy Skyscraper MP3: https://goo.gl/ocdDwT
Inside a skyscraper jutting into the sky, cool air blows through miles of ventilation pipes. The deep rumble created by this massive AC system is a powerful form of white noise. Use this sound to find your focus, get to sleep and quiet your mind.

© Relaxing White Noise LLC, 2015. All rights reserved. Any reproduction or republication of all or part of this video/audio is prohibited. 


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